A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-00-778-6342
NSN 5915-01-433-9666
NSN 6610-01-172-0897
NSN 6620-00-806-7936
NSN 5965-01-433-1974
NSN 4140-00-116-1022
NSN 6610-01-016-2722
NSN 5920-01-247-7424
NSN 6240-01-216-4060
NSN 6685-01-469-7770
NSN 6650-01-265-0650
NSN 5855-01-357-7907